Koichi Inaba

Title: The Innovative Contributions of Koichi Inaba

Introduction

Koichi Inaba is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of exhaust gas purification technology, holding a total of five patents. His work focuses on improving the efficiency of internal combustion engines and reducing harmful emissions.

Latest Patents

One of Inaba's latest patents is an exhaust gas purification device for internal combustion engines. This device features an NOx purification unit integrated into the exhaust gas piping, which supports an NOx storage catalyst (NSC). Additionally, it includes a catalyzed soot filter (CSF) positioned downstream of the NOx purification unit, which utilizes a particulate combustion catalyst to combust captured particulates. The electronic control unit (ECU) regulates the exhaust gas flow into the NSC, ensuring a rich environment that raises the temperature of the NSC, thereby facilitating the desorption of sulfur components. The particulate combustion catalyst is composed of an alloy of silver (Ag) and palladium (Pd) on an AlO carrier, with specific quantities and ratios to optimize performance.

Another notable patent is a NOx purifying catalyst designed to efficiently remove NOx even during low-temperature operations, such as those found in diesel vehicles. This catalyst comprises a first catalyst layer containing a β zeolite with iron and a second layer containing noble metals, cerium oxide, and a specific zirconium oxide material. The arrangement of these layers enhances the catalyst's effectiveness in processing NOx in exhaust gases.

Career Highlights

Inaba has worked with notable companies such as Honda Motor Co., Ltd. and Mitsui Mining & Smelting Company, Ltd. His experience in these organizations has allowed him to develop and refine his innovative technologies in exhaust gas purification.

Collaborations

Throughout his career, Inaba has collaborated with esteemed colleagues, including Osami Yamamoto and Naohiro Sato. These partnerships have contributed to the advancement of his research and the successful implementation of his inventions.

Conclusion

Koichi Inaba's contributions to exhaust gas purification technology have made a significant impact on reducing emissions from internal combustion engines. His innovative patents and collaborations with industry leaders highlight his dedication to improving environmental sustainability.